WO2014019832A1 - Dispositif électrique à connecteur protégé contre les explosions - Google Patents

Dispositif électrique à connecteur protégé contre les explosions Download PDF

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Publication number
WO2014019832A1
WO2014019832A1 PCT/EP2013/064728 EP2013064728W WO2014019832A1 WO 2014019832 A1 WO2014019832 A1 WO 2014019832A1 EP 2013064728 W EP2013064728 W EP 2013064728W WO 2014019832 A1 WO2014019832 A1 WO 2014019832A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
mating
protection
contacts
mating contact
Prior art date
Application number
PCT/EP2013/064728
Other languages
German (de)
English (en)
Inventor
Carsten BRENNER
Original Assignee
R. Stahl Schaltgeräte GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by R. Stahl Schaltgeräte GmbH filed Critical R. Stahl Schaltgeräte GmbH
Priority to CN201380041124.8A priority Critical patent/CN104662747B/zh
Priority to EP13735308.2A priority patent/EP2880720B1/fr
Priority to US14/418,717 priority patent/US9531116B2/en
Publication of WO2014019832A1 publication Critical patent/WO2014019832A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
    • H01R13/7036—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part the switch being in series with coupling part, e.g. dead coupling, explosion proof coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/53—Bases or cases for heavy duty; Bases or cases for high voltage with means for preventing corona or arcing

Definitions

  • the invention relates to an electrical device with a connector for the electrical connection of several components of the electrical device.
  • EP 1 638 173 A2 proposes connectors which have a plurality of contact pins.
  • One of the contact pins serves for contacting a surveillance conductor.
  • This contact ⁇ pin is designed to be shorter than the other contact pins, so that he contacted in the manufacture of the connector last and disconnects when disconnecting the connector as the first.
  • At the monitoring conductor is a voltage that is below the minimum ignition voltage. Thus, no spark can occur when opening and closing the contact point.
  • the monitoring conductor is used to switch the power supply to and from the other longer contact pins on and off.
  • a connector for electrical connection of two components of the electrical device is provided.
  • a connector is used to connect two sections of an electric circuit, wherein one section is arranged in one component of the electrical device and the other section is arranged in the other component of the electrical device.
  • the two sections together form an electrical circuit.
  • the connector comprises a contact arrangement and a mating contact arrangement.
  • the contact arrangement comprises at least two contact groups ⁇ a ter for the forward conductor and one of the remindlei-.
  • Each contact group includes at least one or more contacts.
  • the mating contact arrangement comprises at least two mating contact groups.
  • Each symbolsjorgrup- pe comprises at least one, possibly also several mating contacts.
  • the contacts and the mating contacts can be designed either as a plug pin or other and as ⁇ socket contact or other mating contact.
  • the Contacts and mating contacts form contact / mating contact pairings.
  • the contact / mating contact pairings of the Hinleiters and the contact / mating contact pairings of the return conductor are preferably flowed through by the same load current.
  • the contact / mating contact groups have different first touch positions.
  • the contact / mating contact group which records a later contact during mating of the connector and disconnects earlier when the connector is disconnected, has a first degree of protection than the other contact / mating contact group.
  • Explosionsge ⁇ protected disconnect switch for the remaining other contact / mating contact group with other (second).
  • the second type of protection is preferably the protection ⁇ art Ex e.
  • the first type of protection is preferably the degree of protection Ex d or Ex i.
  • the contact group comprises several Kon ⁇ tact / mating contact pairings. These can be connected in parallel branches of the electrical
  • Circuit can be arranged. Also, they are preferably each individual current limiting circuits zugeord ⁇ net. The structural complexity of such a connector remains low. The explosion protection is realized electrically.
  • the current limiting circuits may be associated with the connector assembly. An intervention in the electronics of the circuit to be connected is not he ⁇ required. In addition, in any of the proposed embodiments, an additional monitoring conductor is required.
  • voltage limiting circuits can be assigned to the contact / mating contact pairings, in particular if the degree of protection Ex i is provided. These prevent sparking at the contacts, which are designed, for example, in the type of protection Ex i.
  • This embodiment is particular ⁇ DERS for circuits having one or more inductors in the circuit.
  • FIG. 1 A device according to the invention, in the most schematic representation.
  • FIG. 2 to 6 further exemplary alternative embodiments of the invention ⁇ device in each case, in a schematic block diagram representation.
  • an electrical device 10 is illustrated schematically ⁇ table, which is operable in explosive environment.
  • the electrical device 10 comprises at least two components 11, 12, which cooperate electrically.
  • the component 11 may be one or more electrical consumers included, such as for example, light sources ⁇ , motors, sound generator or other electrical components or apparatus such as computer or the like. All such consumers are symbolized in FIG. 1 by a resistor 13. Its impedance can be purely ohmic, purely reactive or complex.
  • the first component may contain 11 not further illustrated or current ⁇ voltage sources.
  • the second component 12 includes at least one tension ⁇ voltage source 14, which feeds the electrical load.
  • the voltage source 14 may be of any suitable type. It may be formed, for example, as a rechargeable battery, as a power supply, as a primary battery, as a supercapacitor or as another memory.
  • the second component 12 may include a plurality of such voltage sources 14 in series or parallel connection.
  • the second component 12 may include electrical loads.
  • a connector device 15 which is symbolized in Figure 1 by a long / short dashed quadrangle.
  • the connector device 15 includes a contact assembly 16, which comprises at least two Kohntaktmaschine 17, 18.
  • the contact group 17 comprises at least one contact 17a or several such contacts.
  • the contact 17a (and optionally further to the same contact group 17 associated contacts), for example, as Steckkon ⁇ clocks or alternatively be designed as a socket contacts.
  • the second contact group 18 comprises at least one contact 18a or optionally also a plurality of contacts.
  • To the connector device 15 also includes a mating contact assembly 19 which includes a first mating contact group 20 and a second mating contact group 21.
  • the first mating contact group 20 has a mating contact 20a and possibly further mating contacts.
  • the second mating contact group 21 has at least one counter ⁇ contact 21 a and optionally further mating contacts.
  • the mating contacts 20a, 21a of the two mating contact groups and optionally further be associated to the groups formed ⁇ counter contacts can be used as plugs or sockets.
  • the contact 17a and the mating contact 20a form together men ⁇ a contact / mating contact pairing 22.
  • the contact 18a and the mating contact 21a constitute a contact / Ge ⁇ gentitle pairing 23rd
  • the contact / mating contact pairings 22, 23 form the forward conductor and the return conductor, which electrically connect a first section 25 to a second section 26 in a circuit 24.
  • the first section 25 is arranged in the first component 11.
  • the section 25 contains the electrical load 13.
  • the second section 26 is arranged in the second component 12 and contains the source 14.
  • the plug connector 15 fulfills a high type of protection, such as, for example, Ex d or Ex i.
  • the contact / mating contact pairs 22, 23 different types of protection.
  • that contact / Jacobkey- pairing here the pairing 22
  • Connector 15 last receives electrical contact and at the same time is the one who first disconnects the electrical current path when disconnecting, in the ers ⁇ th degree of protection, here, for example, Ex d formed.
  • the Zündschutz ⁇ art Ex d is achieved for example by an enclosure of the counter contact group 20 and the mating contact 20a, which defines a gap 28 with the contact group 17 and the contact 17a, which is so long and so narrow that in case of explosion within the enclosure 27 from the gap 28 neither flames nor glowing particles escape.
  • the other contact / mating contact pairing 23, however, is executed in the second type of protection, for example.
  • It is considered to be static electrical contact, which only closes or disconnects when it is de-energized.
  • the currentlessness is effected when closing by the lead V and when opening by the lag N, with which the contact 18a operates in comparison to the contact 17a.
  • the lead V and the lag N can be achieved in the simplest case by a length difference of the contacts 17a, 18a.
  • a position or length difference of the mating contacts 20a, 21a may be provided.
  • the premature closing of the contact / counter contact Pa ⁇ tion 23 and the lagging opening the same can be achieved alterna ⁇ tively by other means.
  • Conswei ⁇ se may comprise the connector 15 other means to always permit only the electrical contact between the contact 17a and the mating contact 20a when the contact 18a and the mating contact 21a are already in a safe contact.
  • These means can also be provided to secure the contact 17a and the mating contact 20a disconnect before the contact 18a and the mating contact 21a separate.
  • insulating elements may be provided for this purpose, which move the contact 17a and the contact 20a in a direction other than the insertion direction (eg transversely thereto) and thus close or disconnect, if the connector is to be made or disconnected.
  • the device 10 works as follows:
  • the connector device 15 When the components 11, 12 are provided, the connector device 15 is initially in a disconnected state. If the contact arrangement 16 is then connected to the counter-contact arrangement 19 by being moved toward one another, the contact / counter contact pairing 23 first closes. This takes place in the de-energized state because the circuit 24 has not yet been closed. The circuit 24 closes as soon as the contact 17a is inserted into the housing 27 and comes within contact with the mating contact 20a. This may possibly cause a spark that ignites in the housing 27 located ignitable mixture. The enclosure 27 is sized to withstand the resulting explosion. Occurring overpressure can be reduced by the gap 28, wherein the length and small width of the gap 28 prevent the escape of flames or glowing particles. Likewise, the conditions when a spark occurs within the housing 27 when disconnecting the connector means 15.
  • Figure 2 illustrates a modified form of the execution ⁇ device 10.
  • the above description is on the basis of the reference numerals already introduced accordingly.
  • the consumer 13 and the voltage source 14 are symbolically arranged by blocks. These can meh ⁇ eral or many electrical or electronic components including, current and voltage sources resistive elements in reactive elements or the like.
  • the contact / mating contact pairing 23 may comprise a plurality of contacts 18a, 18b and mating contacts 21a, 21b. These are electrically parallel ge ⁇ on. Preferably, they are arranged on both sides of the con tact ⁇ / counter contact pairing 22nd This provides protection against skewing when pulling and plugging. By a built-in or externally mounted me chanical ⁇ guiding the to be plugged portion ⁇ an oblique position is prevented.
  • contacts 18a, 18b and counter ⁇ contacts 21a, 21b arranged at different opposite sides of the contact / mating contact pairing 22 can also be dispensed with a parallel guide, because even with inclined position of the corresponding connector parts a safe forward or lagging the contacts 18a, 18b sheared.
  • the contact / mating contact Pa ⁇ tion 22 in protection Ex d is executed.
  • the other con ⁇ tact / mating contact pairing 23 is carried out in the protection Ex e when plugging before and while pulling lagging.
  • the circuit is opened when opening the Ex d contact si ⁇ cher before the Ex e disconnects connection.
  • When closing the Ex e contact is already closed until the trailing Ex d contact closes the circuit.
  • the Kon ⁇ clocks and mating contacts can be executed as mentioned in each case several times and connected in parallel. This applies to the Ex e contacts as well as to the Ex d contacts.
  • the contacts and mating contacts are subject to the type of protection Ex i. the contact mating contact pair 23 is again embodied in the type of protection Ex e
  • the current ⁇ circle 24 is, as far as it passes through the contacts 17 a to c and Ge ⁇ genuttone 20 a to c, divided into mutually parallel branches 29, 30, 31. In these branches, at least in one of the components 11, 12, preferably in both,
  • Current limiting devices 33 to 38 are provided. These may involve ohmic resistances or complex cons ⁇ stands or electronic circuits which switch off when reaching a limit current or limit this current. Such current limiting circuits can be constructed with transistors or other electronic components or integrate circuits which monitor flowing current and throttle if necessary.
  • the principle lies in the fact that one of the conductors (forward conductor or return conductor) is guided in multiple poles over several Ex i contacts.
  • the circuit 24 is divided into several intrinsically safe circuits.
  • the Ex i contacts take over the activation of the circuit before the separation. Regardless of the degree of protection Ex i for the contact / mating contact assembly 22, the components 11, 12 also fully or partially encapsulated may be madebil ⁇ det.
  • a voltage limiting device 39 may be provided which limits the voltages occurring at the contacts Ex i of the contact / mating contact pair 22.
  • this can be done by voltage limiting diodes, for example Z-diodes 40, 41, 42, which are connected to the branches 29, 30, 31 and which are connected to a common ground potential.
  • the connection point of the Zener diodes 40 to 42 46 may be connected to a suitable location of the circuit 24 in the respective walls ⁇ ren component, here the component 12 and over a contact / mating contact pairing.
  • the Zener diodes 40 to 42 can resistors 43, 44, 45 may be pre ⁇ switches, again to limit the current occurring. Otherwise, the previous description applies accordingly.
  • the embodiment may be modified in accordance with FIG 4, that the clamping ⁇ voltage source 14 is separated into individual voltage sources 14a, 14c to be formed.
  • the circuit 24 is divided into individual Ex i circuits in different branches 29, 30, 31. The number of these individual branches results from the desired current flowing through the load 13 and the current load provided at each contact 17a-c.
  • the contact / mating contact pairing 23 is preferably in turn an Ex e contact. The previous write-Be ⁇ otherwise apply accordingly.
  • Figure 6 illustrates a modified execution ⁇ form in which a plurality of protection according to Ex i ⁇ making te cooperating contact / mating contact pairings with a 23 designed according to the Ex d protection contact / mating contact pairing 23rd
  • the switching contact here is the contact against Griffinpaa ⁇ tion 22. This is provided with the housing 27, which provides the explosion protection.
  • the arranged in the branches 29, 39, 31 contact / mating contact pairings 23 are the leading during insertion and trailing when pulling contact pairings. They are current limiting devices 33 to 35 before and / or downstream. In addition, a voltage limiting device 39 may be provided.
  • Turn 24 is divided into a plurality of intrinsically Siche ⁇ re circuits or branches 29 to 31 of the circuit.
  • one of the conductors forward conductor or return conductor
  • the other conductor is routed via one or more contact / mating contact pairings designed according to the Ex d criteria.
  • a current and / or voltage limitation may be 12 pre see ⁇ both the component 11 and additionally or alternatively in the component.
  • the voltage limiting device 39 can be supported on internal ground circuits on the ground.
  • a connection can be provided on the model of Figure 4. It may be the two components 11, 12 completely or partially encapsulated (eg Protection type Ex d or Ex m) may be formed.
  • All embodiments with a plurality of contacts 17a-c or 18a-c, in particular according to FIGS. 5 and 6, can be used to design a bus system.
  • the respective contacts 17a - 17c ( Figure 5) or 18a - 18c to be (Fi gur ⁇ 6) is designed as bus lines.
  • the voltage ⁇ source 14 may be housed in the component.
  • the module 12 or a plurality of parallel modules 12 can then be plugged onto the bus lines. But it is also possible to use the contacts 20a - 20c or 21a - 21c as bus ⁇ lines.
  • one or more components 11 can be attached to these bus lines belonging to the module 12. In both of these cases, the bus lines may be flexible or inflexible insulated or bare lines.
  • a connector device 15 is provided, which for opening and
  • the connector ⁇ tion device 15 includes at least two contact / mating contact pairings 22, 23, which are designed in different types of protection. At least one of the two Contact / mating pairing is designed to separate the current passing through them without causing an explosion. (Type of protection Ex d or Ex i). The other contact / mating contact pairing 23 opens and closes when de-energized. It can therefore be designed in the second type of protection, for example Ex e.

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne un dispositif électrique comprenant un dispositif de connexion (15) qui sert à ouvrir et fermer un circuit électrique (24). Le dispositif de connexion (15) contient au moins deux paires de contacts/contacts antagonistes (22, 23) qui sont réalisées avec des types de protection différents. Au moins une des deux paires de contacts/contacts antagonistes est conçue pour couper le courant passant par elle sans qu'une explosion soit de ce fait déclenchée. (Type de protection Ex d ou Ex i). L'autre paire de contacts/contacts antagonistes (23) ouvre et ferme quand il n'y a pas de courant. Elle est par conséquent réalisée avec un deuxième type de protection, par exemple Ex e.
PCT/EP2013/064728 2012-08-02 2013-07-11 Dispositif électrique à connecteur protégé contre les explosions WO2014019832A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201380041124.8A CN104662747B (zh) 2012-08-02 2013-07-11 带有防爆插拔连接的电气装置
EP13735308.2A EP2880720B1 (fr) 2012-08-02 2013-07-11 Dispositif électrique comprenant un connecteur protégé contre les explosions
US14/418,717 US9531116B2 (en) 2012-08-02 2013-07-11 Electrical device having an explosion-proof plug-in connection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012107091.1A DE102012107091A1 (de) 2012-08-02 2012-08-02 Elektrische Einrichtung mit explosionsgeschützter Steckverbindung
DE102012107091.1 2012-08-02

Publications (1)

Publication Number Publication Date
WO2014019832A1 true WO2014019832A1 (fr) 2014-02-06

Family

ID=48782347

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/064728 WO2014019832A1 (fr) 2012-08-02 2013-07-11 Dispositif électrique à connecteur protégé contre les explosions

Country Status (5)

Country Link
US (1) US9531116B2 (fr)
EP (1) EP2880720B1 (fr)
CN (1) CN104662747B (fr)
DE (1) DE102012107091A1 (fr)
WO (1) WO2014019832A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943213A (en) * 1957-03-05 1960-06-28 Mine Safety Appliances Co Electric power system for hazardous atmospheres
US4166664A (en) * 1975-01-24 1979-09-04 Amp Incorporated High voltage quick disconnect electrical connector assembly
EP0314949A1 (fr) * 1987-11-03 1989-05-10 Siemens Aktiengesellschaft Groupe électrique fonctionnel pour un véhicule
DE19838492A1 (de) * 1998-08-25 2000-03-09 Stahl R Schaltgeraete Gmbh Explosionsgeschützte Steckverbindungsanordnung
EP1638173A2 (fr) 2004-09-20 2006-03-22 BöSha GmbH + Co. KG Installations électriques antidéflagrants, en particulier lumières et boîtes de jonction, dans circuits électriques avec connecteurs
DE202005010927U1 (de) 2005-07-12 2006-11-16 Cooper Crouse-Hinds Gmbh Explosionsgeschützter Steckverbinder
DE102006016137A1 (de) * 2006-04-06 2007-10-11 Robert Bosch Gmbh Steckvorrichtung zur Kontaktierung der Hochspannungsbaugruppe eines Hybridfahrzeugs sowie Hochspannungsbaugruppe eines Hybridfahrzeugs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628392A (en) 1983-12-20 1986-12-09 Biw Cable Systems, Inc. Explosion proof electrical connector system with quick power disconnect
DE3621960A1 (de) * 1986-07-01 1988-01-14 Wagner Robert Explosionsgeschuetzte fassung und leuchte fuer zweistiftsockel-leuchtstofflampen
DE10052846C2 (de) * 2000-10-25 2003-10-16 Abb Patent Gmbh Anordnung zur Verzweigung elektrischer Stromkreise im explosionsgefährdeten Bereich
DE102010040833A1 (de) * 2010-09-15 2012-03-15 Endress + Hauser Gmbh + Co. Kg Elektrische oder elektronische Sicherheitsbaugruppe
DE102011010799A1 (de) * 2011-02-09 2012-08-09 Krohne Messtechnik Gmbh Explosionsgeschütztes Gerät

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943213A (en) * 1957-03-05 1960-06-28 Mine Safety Appliances Co Electric power system for hazardous atmospheres
US4166664A (en) * 1975-01-24 1979-09-04 Amp Incorporated High voltage quick disconnect electrical connector assembly
EP0314949A1 (fr) * 1987-11-03 1989-05-10 Siemens Aktiengesellschaft Groupe électrique fonctionnel pour un véhicule
DE19838492A1 (de) * 1998-08-25 2000-03-09 Stahl R Schaltgeraete Gmbh Explosionsgeschützte Steckverbindungsanordnung
EP1638173A2 (fr) 2004-09-20 2006-03-22 BöSha GmbH + Co. KG Installations électriques antidéflagrants, en particulier lumières et boîtes de jonction, dans circuits électriques avec connecteurs
DE202005010927U1 (de) 2005-07-12 2006-11-16 Cooper Crouse-Hinds Gmbh Explosionsgeschützter Steckverbinder
DE102006016137A1 (de) * 2006-04-06 2007-10-11 Robert Bosch Gmbh Steckvorrichtung zur Kontaktierung der Hochspannungsbaugruppe eines Hybridfahrzeugs sowie Hochspannungsbaugruppe eines Hybridfahrzeugs

Also Published As

Publication number Publication date
US9531116B2 (en) 2016-12-27
DE102012107091A1 (de) 2014-02-06
CN104662747A (zh) 2015-05-27
EP2880720A1 (fr) 2015-06-10
EP2880720B1 (fr) 2017-01-11
US20150180162A1 (en) 2015-06-25
CN104662747B (zh) 2018-09-21

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